day2doy.c File Reference

Convert date to day of year. More...

#include "mptrac.h"

Go to the source code of this file.

Functions
void	usage (void)
	Print command-line help. More...
int	main (int argc, char *argv[])

Detailed Description

Convert date to day of year.

Definition in file day2doy.c.

Function Documentation

usage()

void usage

(

void

)

Print command-line help.

Definition at line 67 of file day2doy.c.

        {
 
  printf("\nMPTRAC day2doy tool.\n\n");
  printf("Convert a calendar date to day of year.\n");
  printf("\n");
  printf("Usage:\n");
  printf("  day2doy <year> <mon> <day>\n");
  printf("\n");
  printf("Arguments:\n");
  printf("  <year>  Year.\n");
  printf("  <mon>   Month.\n");
  printf("  <day>   Day of month.\n");
  printf("\nFurther information:\n");
  printf("  Manual: https://slcs-jsc.github.io/mptrac/\n");
}

main()

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 39 of file day2doy.c.

                {
 
  /* Print usage information... */
  USAGE;
 
  /* Check arguments... */
  if (argc < 4)
    ERRMSG("Missing or invalid command-line arguments.\n\n"
           "Usage: day2doy <year> <mon> <day>\n\n" "Use -h for full help.");
 
  /* Read arguments... */
  const int year = atoi(argv[1]);
  const int mon = atoi(argv[2]);
  const int day = atoi(argv[3]);
 
  /* Convert... */
  int doy;
  day2doy(year, mon, day, &doy);
  printf("%d %d\n", year, doy);
 
  return EXIT_SUCCESS;
}

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